Nanotechnology Core Facility, Office of Scientific Coordination, National Center for Toxicological Research, Food and Drug Administration, Jefferson, AR 72079, USA.
Nanotechnology Core Facility, Office of Scientific Coordination, National Center for Toxicological Research, Food and Drug Administration, Jefferson, AR 72079, USA.
NanoImpact. 2023 Apr;30:100467. doi: 10.1016/j.impact.2023.100467. Epub 2023 May 15.
Environmental contamination by micro- and nanoplastics (MNPs) is well documented with potential for their increased accumulation globally. Growing public concern over environmental, ecological, and human exposure to MNPs has led to exponential increase in publications, news articles, and reports (Casillas et al., 2023). Significant knowledge gap exists in standardized analytical methods for the identification and quantification of MNPs from real world environmental samples. Here, we report comprehensive datasets utilizing thermogravimetric analyzer (TGA) coupled to a Fourier transformed infrared spectrometer (FTIR) and a gas chromatography/mass spectrometer (GC/MS) with corresponding Raman spectral data for the most common polymers documented to be present in the environment (35 plastics of 12 polymer types), to serve as a base line reference for the identification and quantitation of MNPs. Various parameters for TGA-FTIR-GC/MS data acquisition were optimized. Commercial consumer plastic product compositions were identified using this analytical database. Case studies to showcase the utility of the method for polymer mixtures analysis is included. This dataset would serve towards the development of a collaborative, global, comprehensive, and curated public database for the identification of various MNPs and mixtures.
微塑料和纳米塑料（MNPs）的环境污染已被充分记录，其在全球范围内的积累有增加的趋势。公众对 MNPs 对环境、生态和人类暴露的日益关注，导致相关出版物、新闻文章和报告呈指数级增长（Casillas 等人，2023 年）。在从实际环境样本中识别和量化 MNPs 的标准化分析方法方面，仍存在显著的知识空白。在这里，我们报告了综合数据集，利用热重分析仪（TGA）与傅里叶变换红外光谱仪（FTIR）和气相色谱/质谱联用仪（GC/MS）联用，并结合相应的拉曼光谱数据，这些数据涵盖了环境中最常见的聚合物（35 种 12 种聚合物类型的塑料），作为识别和定量 MNPs 的基准参考。优化了 TGA-FTIR-GC/MS 数据采集的各种参数。使用这个分析数据库识别了商业消费性塑料产品的组成。案例研究展示了该方法在聚合物混合物分析中的应用。该数据集将有助于开发一个协作的、全球的、全面的和经过精心整理的公共数据库，用于识别各种 MNPs 和混合物。
